Adds the Payment Request button (Apple Pay) on the checkout page then moves it to after the customer details (WooCommerce Stripe extension)

add_move_payment_request_checkout_page.php

// Adds the Payment Request button (Apple Pay) on the checkout page then moves it to after the customer details.
// Replace `woocommerce_checkout_after_customer_details` with wherever you want to 

add_filter( 'wc_stripe_show_payment_request_on_checkout', '__return_true' );

remove_action( 'woocommerce_checkout_before_customer_details', array( WC_Stripe_Payment_Request::instance(), 'display_payment_request_button_html' ), 1 );
remove_action( 'woocommerce_checkout_before_customer_details', array( WC_Stripe_Payment_Request::instance(), 'display_payment_request_button_separator_html' ), 2 );

add_action( 'woocommerce_checkout_after_customer_details', array( WC_Stripe_Payment_Request::instance(), 'display_payment_request_button_html' ), 1 );
add_action( 'woocommerce_checkout_after_customer_details', array( WC_Stripe_Payment_Request::instance(), 'display_payment_request_button_separator_html' ), 2 );